Air-drier.



PATENTED NOV. 26 1907.

F. T. STARE.

AIR DRIER. APPLIOATIOI FILED HAY 27, 1907.

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- UNITED STATES PATENT OFFICE.

FRANK TEMPEST STARE, OF WAUKESHA, WISCONSIN, ASSIGNOR TO AMERICAN I DEHYDRATING; COMPANY, .11 CORPORATION OF WISCONSIN.

. AIR-DRIER.

, Specification of Letters Patent.

- Patented Nov. 26, 1907.

Application filed rel 27.1907. Serial no. 375,864. r p i T 0 all whom it may concern: I

Be it known that I, FRANK TEMPEST STARE, a citizen of the United States, residing at Waukesha, in the county of Waukesha and State of IVisconsin, have invented oertainnew and useful Improvements in Air- Driers, of which the following is a specification. r

My invention relates to apparatus used in extracting moisture from air or other vapor,

and consists in the construction and arrange ment of aseries of receptacles adapted to contain moisture-absorbing substance, through whichreceptacles the air to be dried, is forced to pass.

Heretoforeit has been the custom, as far as I am aware, to support the moisture-absorbing substance, used in ai'r-driers, and the like, upon shallow iron trays or pans, supported one above another in a chamber, or else -to place the. moisture-absorbing substance upon screens or gratings supported bythe walls of the chamber.

The object of my'presentdnvention is to provide a cup or receptacle for the moistureabsorbing substance, and to so arrange and support a plurality of layers of such cups or receptacles that all the air tobe dried is forced to come into contact with a large amount of the'moisture-absorbifi substance during its'passage downwardly t rough the drier.

. The construction of the cups and the arran ement of the same toform the drier will be best understood fromLthe following detailed description, taken. in connection with the accompanying two sheets of drawings, in

which Figure .1, is a vertical section. through an air drier constructed according to my inven-' tion. Fig. 2, is a horizontal section throu h the same taken on three different levels. Fig. 3, is an enlarged side view of a portion of the stack of cups or receptacles, constituting the air drier, and Fig. 4 is a plan view of Fi 3. "In these views 1 represents the walls of the in'closing casing of the drier, the same bein closed at the top, at 2, with the exception o an openin for the stack 3, which will 'be re- 'ferredto urther on. 4

. The-cups or receptacles'4, which contain a moisture-absorbing substance, such as calcium chlorid, for example, and the detailed construction of which will be described hereinafter, are arranged in superimposed layers low the spaces between the cups of the adj acent layers. Between each layer is placed a perforated metal plate 6, the openings 9 in which lie over the open ends of the cups in the layer beneath.

The construction of the cups will now be described in detail and, as they are identical m form, a description of one of them will suffice.

As shown in the drawings, the cups are circular in cross section but, while this is a convenient form for the purpose of manufacture, it is not essential that the cups be circular. They may be square, or of any other convenient shape, it being only necessary that they be identical in. shape and size.

However, as I have stated, I prefer to use,

circular cups, which are drawn up frbm sheet steel, a small flange 10 being formed around their open end; a sli ht distance below the flange, at diametrical y opposite points four apertures 8 are formed in the walls of the cup.

The openings 9 in the late 6, above referred to, are smaller in' 'ameter than the cups, and are s stood to lie concentrically with the cups of the layer below. In said openings 9 are supported 0 en-ended tubes 12 which project downwar ly into the corresponding cups to a point somewhat below the level of the apertures 8,:in the walls of the cup. The function of these tubes is to direct the air comin through the o enings in the plate downwar ly toward the ottom of the on s so as to bring the air into contact with the chlorid and prevent its direct escape through the side openings of the cups.

The use of these tubular guides is not absolutely necessary'but it results in a more complete dehydration of the air, and therefore, I prefer to employ them. Of course, these guides 'need not be cylindrical, but may tage r upwardly or downwardly, if desired. i

ithm the casing of the drier, abovethe plate covering the top layer of cups is-an in= et 0 ning 15, through which the air to be drie enters, and below the channel-irons 5 is an outlet opening 16 for said air. It will be seen that in. its passage downwardly fromthe inlet to the outlet 16, the air first enters the cups of the top layer through the openings in the plate above the same and passing through the tubular guides comes into contact with the chlorid contained in said cups and then passes upwardly and out through the openings 8 in the Walls of said cups into the spaces between each four cups of said layer, from which it passes down wardly through the openings in the plate layers below said plates and so on.

After the air to be dried has been passed through the drier for a certain time, the chloridbecomes too moist for efficient opernext below and thence into the cups ofthe ation, and consequently, the flow of air is cut oil, and hot air ispassed upwardly through the stack of cups, from which it removes the absorbing substances,- the receptacles of each moisture collected. This hot air enters the bottom of the drier through the inlet 17 and escapes through the stack 3 at the top of the drier.

The inlet and outlet pipes are provided With valves 19, to control the operation of the drier. I

Having thus described my invention, what Iclaim is:

1. An air drier, comprising a superimposed series of layers of receptacles for moisturelayer lying over the spaces between the re- "ceptacles of the layer below, each receptacle superimposed layers of cups or receptacles being open at the top and havlng penings m its-side walls and a perforated p ate interosed between each pair of layers, the 0 enlngs in said plates lying over the open en s of the receptacles of the'layer beneath.

2'. An air drier comprising. acasi-ng provided with an apertured floor, a series of supported above said cup and 'downwardlytherein to point.

plate interposed between each two layers.

3. An a1r drier comprising a casing provided with air inlets and outlets at its top and bottom and with an apertured floor,-'su erimposed series of layers of cups su porte on" funnels supported by said dplates and projec ting downwardly into sai cups.

5. An a1r drier comprising a series of superimposed layers of cups having openings in their side walls, the cups ofQeach layer lying over the spaces between the cups of the layer below, a perforated plate interposed between each two layers and a" tubular funnel supported in the openings of said plates, and projecting downwardly into said cups below' the level of said openings in their walls. Q i I 6.. In an air drier, a receptacle for moisture-absorbing substance, consisting of a cup having diametrically opposite openings supported on said floor, and a perforated in its Walls and 'a tubular guide or funnel projecting level of said openings;

In testimony whereof I havegaflixed my signature, in presence of two witnesses. i FRANK TEMP'EST STARE.

Witnesses: v

RALPH MJORARY, D. FELTZERL,

elow the I 

